Daikin FDMA18AVJU9 & RXP18AVJU9 18,000 BTU 18.00 SEER2 Aurora Low Temperature Horizontal Ducted Single Zone Heat Pump System - R32

Daikin FDMA18AVJU9 & RXP18AVJU9 – 18,000 BTU R-32 Ducted Concealed Mini-Split Heat Pump System

The Daikin FDMA18AVJU9 concealed indoor unit and RXP18AVJU9 outdoor unit deliver 17,600 BTU of cooling and 21,600 BTU of heating with highly efficient, environmentally responsible R-32 refrigerant. This 1.5-ton Aurora Series ducted system provides powerful, quiet, and fully hidden comfort ideal for mid-size residential rooms, apartments, and light commercial spaces. With advanced inverter-driven efficiency, cold-climate heating, and flexible ducted installation, the FDMA18AVJU9 & RXP18AVJU9 system ensures year-round performance while maintaining a clean architectural aesthetic. A 12-year limited warranty further reinforces Daikin’s reputation for reliability and longevity.

General Information

System Type: Ducted concealed mini-split heat pump (indoor & outdoor)
Indoor Model: FDMA18AVJU9
Outdoor Model: RXP18AVJU9
Capacity: 17,600 BTU Cooling / 21,600 BTU Heating (1.5 Ton)
Ideal For: Mid-size rooms, multi-room ducted zones, quiet design-focused spaces
Operating Modes: Cool, Heat, Dry, Fan, Auto, Program Dry, Fan-Only
Refrigerant: R-32, low global warming potential
Factory Charge: Pre-charged for up to 49.2 ft of piping
Control Options: Daikin wired/remotes, centralized controls, and sensors (see accessory list on page 5)

Key Features

• Inverter-Controlled Swing Compressor – Smooth, efficient, low-noise operation (see page 1 feature list)
• Cold-Climate Heating – Reliable performance down to –13.8°F
• Low-Ambient Cooling – Operation down to –4°F with optional wind baffle (page 1)
• Quiet Comfort – Indoor sound levels as low as 35 dB(A)
• Auto Fan Speed & 3-Step Manual Fan Settings – Provides balanced airflow
• Quick Warming Function – Fast heating startup for cold rooms
• Program Dry Mode – Reduces humidity without overcooling
• ECONO Mode – Reduces power consumption during high-demand periods
• Titanium Apatite Filter – Helps capture odors and fine particulates
• Built-In Refrigerant Leak Detection – Enhanced safety monitoring
• Auto Restart & Automatic Defrost – Maintains reliability during power interruptions and winter weather
• Anti-Corrosion Outdoor Coil – Extends system life in harsh conditions
• Flexible Installation – Either-side drain, 49.2 ft precharge, and compact ducted design simplify installation (page 1)

Specifications (Rated Conditions)

Cooling Performance
• Capacity (Rated/Range): 17,600 BTU | 9,000 – 19,600 BTU
• SEER2 (Ducted): 18.00
• EER2 (Ducted): 11.60
• Sensible Cooling Capacity: 14,460 BTU (page 2 table)
• Operating Temp Range: 50°F – 115°F (–4°F with wind baffle)

Heating Performance
• Capacity (Rated/Range): 21,600 BTU | 9,000 – 25,000 BTU
• HSPF2 (Ducted): 9.2
• COP (47°F): 3.0
• Operating Temp Range: –13.8°F – 64°F

Indoor Unit (FDMA18AVJU9)
• Airflow (H/M/L): 609 / 498 / 373 CFM
• Dimensions: 9-5/8″H × 39-3/8″W × 31-1/2″D
• Weight: 82 lb
• Sound Pressure: 35 dB(A)
• Piping: 1/4″ Liquid / 1/2″ Gas
• Condensate Connection: 1″
• Static Pressure (Rated): 0.2 inWC
• Airflow and connection details displayed in indoor dimension diagram on page 3

Outdoor Unit (RXP18AVJU9)
• Airflow: 2,383 CFM
• Dimensions: 29-1/2″H × 34-1/4″W × 12-5/8″D
• Weight: 127 lb
• Sound Pressure: 55 dB(A)
• Refrigerant Charge: 3.04 lbs (factory charge for 49.2 ft)
• Outdoor unit layout shown in diagram on page 4

Line Set Requirements
• Max Pipe Length: 99 ft
• Max Height Difference: 0 ft
• Additional Charge: 0.22 oz/ft beyond 49.2 ft

Electrical
• Power Supply: 208–230V • 1-Phase • 60Hz
• MCA (Outdoor): 21.4 A
• MOP: 25 A

Included Components

• FDMA18AVJU9 ducted concealed indoor unit
• RXP18AVJU9 outdoor heat pump unit
• Drain plug for outdoor unit
• 12-year limited parts & compressor warranty (with registration)
• 5-year commercial parts warranty (page 1)

Ideal For

Homeowners, designers, and builders needing powerful, quiet, and concealed comfort for medium-sized spaces. Perfect for:

• Bedrooms, living rooms & open-concept areas
• Multi-room ducted layouts
• Modern interiors requiring hidden HVAC
• Apartments, condos & townhomes
• Businesses needing quiet operation such as offices, clinics & hotels
• Homes in cold climates requiring strong low-temperature heating

With robust performance, wide operating ranges, and a fully concealed ducted design, the Daikin FDMA18AVJU9 & RXP18AVJU9 system delivers premium, year-round comfort engineered for efficiency and aesthetic integration.